The present invention relates to novel 5-HT.sub.4 receptor ligands which are 1-(5-halo-4-aminophenyl) (C.sub.2-6)alkan-1-one derivatives in which the 5-halo-4-aminophenyl group is substituted at its 2-position with (C.sub.1-4)alkyloxy or phenyl(C.sub.1-4)alkyloxy and optionally substituted at its 3-position with (C.sub.1-4)alkyloxy or substituted at its 2- and 3-positions together with methylenedioxy or ethylenedioxy and the highest numbered carbon of the (C.sub.2-6)alkan-1-one is substituted with di(C.sub.1-4)alkylamino, morpholin-1-yl or pyrrolidin-1-yl or optionally substituted piperidin-1-yl, piperidin-4-yl, azacyclohept-1-yl, azabicyclo\x9b2.2.1!hept-3-yl, azabicylo\x9b2.2.2!oct-3-yl or azabicylo\x9b3.2.2!non-3-yl; and the pharmaceutically acceptable salts, individual isomers and mixtures of isomers and methods of using and making such derivatives.
本发明涉及新型5-HT.sub.4受体
配体,其为1-(5-卤代-4-
氨基苯基)(C.sub.2-6)烷基-1-酮衍
生物,其中5-卤代-4-
氨基苯基基团在其2位被(C.sub.1-4)烷氧基或苯基(C.sub.1-4)烷氧基取代,并且在其3位可选择地被(C.sub.1-4)烷氧基取代,或者在其2位和3位一起被亚甲二氧基或乙二氧基取代,而(C.sub.2-6)烷基-1-酮的最高编号碳被二(C.sub.1-4)烷基
氨基、吗啉-1-基或
吡咯烷-1-基取代,或者可选择地被取代的
哌啶-1-基、
哌啶-4-基、氮杂环庚-1-基、
氮杂双环\x9b2.2.1!庚-3-基、
氮杂双环\x9b2.2.2!辛-3-基或
氮杂双环\x9b3.2.2!壬-3-基取代;以及这些衍
生物的药学上可接受的盐、各个异构体和异构体混合物,以及使用和制备这种衍
生物的方法。